螺丝攻牙钻孔径和底孔对照表

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螺丝攻牙钻孔径对照表公制粗螺纹规格M1.0×0.25 M1.1×0.25 M1.2×0.25 M1.4×0.3 M1.6×0.35 M1.7×0.35 M1.8×0.35 M2.0×0.4 M2.2×0.45 M2.3×0.4 M2.5×0.45 M2.6×0.45 M3.0×0.5 M3.0×0.6 M3.5×0.6 M4.0×0.7 M4.0×0.75 M4.5×0.75 M5.0×0.8 M5.0×0.9 M6.0×1.0 M7.0×1.0 M8.0×1.25 M9.0×1.25 M10×1.5 M11×1.5 M12×1.75 M14×2.0 M16×2.0 M18×2.5 M20×2.5 M22×2.5 M24×3.0 M27×3.0

美制粗螺纹规格(UNC)NO.1-64(1.854) NO.2-56(2.184) NO.3-48(2.515) NO.4-40(2.845) NO.5-40(3.175) NO.6-32(3.505) NO8-32(4.166) NO.10-24(4.826) NO.12-24(5.486) 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1 1-1/8-7 1-1/4-7 1-3/8-6 1-1/2-6 1-3/4-5 2-4-1/2

标准径0.75 0.85 0.95 1.10 1.25 1.35 1.45 1.60 1.75 1.90 2.10 2.20 2.50 2.40 2.90 3.30 3.25 3.80 4.20 4.10 5.00 6.00 6.80 7.80 8.50 9.50 10.30 12.00 14.00 15.50 17.50 19.50 21.00 24.00

2级牙钻孔径 最大 最小0.785 0.885 0.985 1.142 1.321 1.421 1.521 1.679 1.838 1.979 2.138 2.238 2.599 2.440 3.010 3.422 3.326 3.878 4.334 4.170 5.153 6.153 6.912 7.912 8.676 9.676 10.441 12.210 14.210 15.744 17.744 19.744 21.252 24.252 0.729 0.829 0.985 1.075 1.221 1.321 1.421 1.567 1.713 1.867 2.013 2.113 2.459 2.280 2.850 3.242 3.106 3.688 4.134 3.930 4.917 5.917 6.647 7.647 8.376 9.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752

标准径1.55 1.80 2.10 2.30 2.60 2.80 3.40 3.90 4.50 5.10 6.60 8.00 9.40 10.80 12.20 13.60 16.50 19.50 22.20 25.00 28.20 30.80 34.00 39.50 45.20

2级牙钻孔径 最大 最小1.582 1.871 2.146 2.385 2.697 2.895 3.53 3.962 4.597 5.257 6.731 8.153 9.55 11.023 12.446 12.868 18.840 19.761 22.606 25.349 28.524 31.115 34.290 39.827 45.593 1.425 1.695 1.941 2.157 2.487 2.642 3.302 3.683 4.344 4.979 6.401 7.798 9.144 10.592 11.989 13.386 16.307 19.177 21.971 24.638 27.813 30.353 33.528 38.964 44.679

螺丝攻牙钻孔径对照表

luos

M30×3.5

26.50

26.771

26.211

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